#include <iostream>
using namespace std;

int add (int a, int b) { cout << "hello"<< endl; return a+b; }
void add (int a[3], int b[3], int c[3]) {for (int i=0; i++; i< 3) c[i] = a[i]+b[i];}

main(){
  int arr1[3], arr2[3], arr3[3];
  add (2.0, 3.0);
  add (arr1,arr2, arr3);

}
